Idaho · Census place 1667420

Rexburg, Idaho

Rexburg is a city in Madison County, Idaho with an estimated 40,695 residents on July 1, 2024. It is the 10th largest of 86 incorporated places of 1,000+ people in the state.

Population 2024
40,695
#10 of 86 in Idaho
Change since 2020
+2.3%
+931 people
Land area
10.4 sq mi
+ 0.09 sq mi water
Density
3,924 / sq mi
State median 2,389
Orange pin: Rexburg. Shaded: its county. Dark pin: Boise.

Rexburg population, 2020 to 2024

Rexburg added 931 residents from July 2020 to July 2024, a change of +2.3%. In the latest year it moved by -12. Among 36 Idaho places of 5,000 or more, that growth ranks 34th; the median place changed by +8.3%. The median place of 5,000+ in Idaho has 16,745 people, so Rexburg is 2.4 times that size.

39.8k202040.4k202141.1k202240.7k202340.7k2024
July 1 estimates. The April 2020 estimates base was 39,790. The axis starts above zero so yearly changes are visible.

Rexburg covers 10.37 square miles of land and 0.09 of water, for 3,924 people per square mile of land. The median Idaho place of 5,000+ has 2,389, so Rexburg is denser than the typical town.

What county Rexburg is in

All of Rexburg's residents live in Madison County, which had 55,549 residents in 2024. Rexburg holds 73.3% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Rexburg

2 ZIP Code Tabulation Areas (ZCTAs) overlap Rexburg by at least 10% of the ZCTA's or the city's land: 83440, 83460. ZCTAs are Census approximations of USPS ZIP code delivery areas. The list comes from the 2020 ZCTA to place relationship file, so a city that annexed land after 2020 may reach into ZIP codes not listed here.

Where Rexburg is

The Census internal point of Rexburg is at 43.822900, -111.791000. Boise, the capital, is 221.3 miles W in a straight line. The nearest larger place is Idaho Falls, ID (69,523 people), 26.1 miles away. The nearest city of 100,000 or more is Billings, MT, 208.9 miles away.

Internal point

Decimal
43.822900, -111.791000
DMS
43°49'22.44"N 111°47'27.60"W
UTM
12N 436393.9E 4852507.1N
Geohash
9xb921sqb
Plus code
85MCR6F5+5J

Daylight in Rexburg

At 43.82° N, Rexburg gets about 15 h 28 min of daylight around the June solstice and 8 h 55 min around the December solstice, a swing of 6 h 33 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Rexburg

The eight nearest incorporated places of 1,000+ in Idaho, measured between internal points. The closest is Sugar City, 4.1 miles away, with 2,395 people.

Questions people ask

What is the population of Rexburg, ID?

40,695 on July 1, 2024, in the Census Vintage 2024 estimates. That is up 931 (2.3%) from 39,764 in July 2020.

What county is Rexburg in?

Madison County. All of its residents live in that county.

What ZIP codes cover Rexburg?

2 ZIP Code Tabulation Areas overlap it by at least 10% of either area: 83440, 83460.

How far is Rexburg from Boise?

221.3 miles (356.2 km) in a straight line, heading W from Rexburg.

What is the nearest larger city to Rexburg?

Idaho Falls, ID, with 69,523 residents, 26.1 miles away between internal points.

Sources and data as of

Data as of: Census Vintage 2024 subcounty estimates (July 1, 2024), 2024 Gazetteer places, 2020 ZCTA to place relationship file.

  1. 01Census Vintage 2024 subcounty population estimates
  2. 02Census 2024 Gazetteer, places
  3. 03Census 2020 ZCTA to place relationship file
  4. 04Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.